Updating the subsystem name table
(optional) To guarantee the availability of an SSID for exclusive use by the RTCS subsystem, update the z/OS subsystem name (SSN) table.
To update the subsystem name
Add the SSID that you selected to the IEFSSNxx member in SYS1.PARMLIB (or the appropriate Logical PARMLIB data set for the target z/OS image).
- Update the z/OS Subsystem Name Table by either performing an IPL of the target z/OS image or by using the following z/OS operator command:SETSSI ADD,SUBNAME=RTCS
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